 /*******************************************************************************
  * Copyright (c) 2000, 2005 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.externaltools.internal.ui;


 import org.eclipse.jface.preference.PreferencePage;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.ui.IWorkbench;
 import org.eclipse.ui.IWorkbenchPreferencePage;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.externaltools.internal.model.ExternalToolsPlugin;
 import org.eclipse.ui.externaltools.internal.model.IExternalToolsHelpContextIds;
 import org.eclipse.ui.externaltools.internal.model.IPreferenceConstants;

 /**
  * Preference page that allows the user to customize external tools
  */
 public class ExternalToolsPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {

     private Button promptForToolMigrationButton;
     private Button promptForProjectMigrationButton;
     
     public ExternalToolsPreferencePage() {
         setPreferenceStore(ExternalToolsPlugin.getDefault().getPreferenceStore());
         setDescription(ExternalToolsUIMessages.ExternalToolsPreferencePage_External_tool_project_builders_migration_2);
     }

     /**
      * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
      */
     protected Control createContents(Composite parent) {
         PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, IExternalToolsHelpContextIds.EXTERNAL_TOOLS_PREFERENCE_PAGE);
         //The main composite
 Composite composite = new Composite(parent, SWT.NULL);
         GridLayout layout = new GridLayout();
         layout.marginHeight=0;
         layout.marginWidth=0;
         composite.setLayout(layout);
         composite.setFont(parent.getFont());
                 
         promptForToolMigrationButton= createCheckButton(composite, ExternalToolsUIMessages.ExternalToolsPreferencePage_Prompt_before_migrating_3, IPreferenceConstants.PROMPT_FOR_TOOL_MIGRATION);
         promptForProjectMigrationButton= createCheckButton(composite, ExternalToolsUIMessages.ExternalToolsPreferencePage_1, IPreferenceConstants.PROMPT_FOR_PROJECT_MIGRATION);
         
         applyDialogFont(composite);
         
         return composite;
     }
     
     /**
      * Returns a new check button with the given label for the given preference.
      */
     private Button createCheckButton(Composite parent, String label, String preferenceKey) {
         Button button= new Button(parent, SWT.CHECK | SWT.LEFT);
         button.setLayoutData(new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING));
         button.setFont(parent.getFont());
         button.setText(label);
         button.setSelection(getPreferenceStore().getBoolean(preferenceKey));
         return button;
     }
     
     /**
      * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
      */
     public void init(IWorkbench workbench) {
     }

     /**
      * @see org.eclipse.jface.preference.PreferencePage#performOk()
      */
     public boolean performOk() {
         getPreferenceStore().setValue(IPreferenceConstants.PROMPT_FOR_TOOL_MIGRATION, promptForToolMigrationButton.getSelection());
         getPreferenceStore().setValue(IPreferenceConstants.PROMPT_FOR_PROJECT_MIGRATION, promptForProjectMigrationButton.getSelection());
         return super.performOk();
     }

     /**
      * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
      */
     protected void performDefaults() {
         promptForToolMigrationButton.setSelection(getPreferenceStore().getDefaultBoolean(IPreferenceConstants.PROMPT_FOR_TOOL_MIGRATION));
         promptForToolMigrationButton.setSelection(getPreferenceStore().getDefaultBoolean(IPreferenceConstants.PROMPT_FOR_PROJECT_MIGRATION));
         super.performDefaults();
     }
 }

